ruby.git/ext/bigdecimal/extconf.rb, branch v3_2_11

[ruby/bigdecimal] Remove symbol defs in missing.h for old Rubies

2022-09-19T14:40:49+00:00

Commit 2885514 added these to support Ruby 2.1. The rb_sym2str function
is defined since Ruby 2.2.

https://github.com/ruby/bigdecimal/commit/be366c9cf2

[ruby/bigdecimal] Remove array defs in missing.h for old Rubies

2022-09-19T14:40:48+00:00

Commit 02b6053 added these to support Ruby 2.0.0. The rb_array_const_ptr
function is defined since Ruby 2.3.

https://github.com/ruby/bigdecimal/commit/678699ca1b

[ruby/bigdecimal] Remove checks for `struct RRational` and `struct RComplex`

2022-07-14T12:02:02+00:00

These are used to see only if `RRATIONAL` and `RCOMPLEX` are
available, however, these two are macros and can be checked with
`#ifdef` directly.

https://github.com/ruby/bigdecimal/commit/175bbacd43

[ruby/bigdecimal] Improve extconf to allow using bigdecimal as a git gem

2021-12-23T17:28:59+00:00

e.g.
```
gem "bigdecimal", github: "ruby/bigdecimal"
```

It would fail because bundler regenerates the `gemspec`,
so `bigdecimal_version` is gone.

https://github.com/ruby/bigdecimal/commit/bccaa66f2c

[ruby/bigdecimal] Optimize rb_float_convert_to_BigDecimal by using dtoa

2021-01-12T17:11:18+00:00

This improve the conversion speed several times faster than before.

```
RUBYLIB= BUNDLER_ORIG_RUBYLIB= /home/mrkn/.rbenv/versions/3.0.0/bin/ruby -v -S benchmark-driver /home/mrkn/src/github.com/ruby/bigdecimal/benchmark/from_float.yml
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-linux]
Calculating -------------------------------------
                     bigdecimal 3.0.0      master
              flt_e0         156.400k    783.356k i/s -    100.000k times in 0.639388s 0.127656s
            flt_ep10         158.640k    777.978k i/s -    100.000k times in 0.630359s 0.128538s
           flt_ep100         101.676k    504.259k i/s -    100.000k times in 0.983512s 0.198311s
            flt_em10         103.439k    726.339k i/s -    100.000k times in 0.966751s 0.137677s
           flt_em100          79.675k    651.446k i/s -    100.000k times in 1.255095s 0.153505s

Comparison:
                           flt_e0
              master:    783355.6 i/s
    bigdecimal 3.0.0:    156399.5 i/s - 5.01x  slower

                         flt_ep10
              master:    777977.6 i/s
    bigdecimal 3.0.0:    158639.7 i/s - 4.90x  slower

                        flt_ep100
              master:    504259.4 i/s
    bigdecimal 3.0.0:    101676.5 i/s - 4.96x  slower

                         flt_em10
              master:    726338.6 i/s
    bigdecimal 3.0.0:    103439.2 i/s - 7.02x  slower

                        flt_em100
              master:    651446.3 i/s
    bigdecimal 3.0.0:     79675.3 i/s - 8.18x  slower

```

https://github.com/ruby/bigdecimal/commit/5bdaedd530
https://github.com/ruby/bigdecimal/commit/9bfff57f90
https://github.com/ruby/bigdecimal/commit/d071a0abbb

[ruby/bigdecimal] Check the function availabilities separately

2021-01-06T00:25:13+00:00

https://github.com/ruby/bigdecimal/commit/cf839a34c8
https://github.com/ruby/bigdecimal/commit/75db4dabb9

[ruby/bigdecimal] Move some definitions to missing.h

2021-01-04T04:29:10+00:00

https://github.com/ruby/bigdecimal/commit/c2b22cc8b3
https://github.com/ruby/bigdecimal/commit/8cbca8481d
https://github.com/ruby/bigdecimal/commit/f05aecf673

Check if x86intrin.h is available not only existing

2021-01-02T00:48:42+00:00

[ruby/bigdecimal] Implement special conversions for 64-bit integers

2021-01-01T15:54:09+00:00

This change improves the conversion speed from small integers.

```
Comparison:
                           big_n9
              master:   4003688.9 i/s
    bigdecimal 3.0.0:   1270551.0 i/s - 3.15x  slower

                          big_n19
              master:   5410096.4 i/s
    bigdecimal 3.0.0:   1000250.3 i/s - 5.41x  slower
```

https://github.com/ruby/bigdecimal/commit/3429bd7e6f

[ruby/bigdecimal] Define bool, true, and false for old Ruby

2020-12-29T08:46:37+00:00

https://github.com/ruby/bigdecimal/commit/a6d3bd2d44